Book sander



Sept. 13, 1927. w E REM/ls 1,642,171

BOOK SANDER Filed Sept. 1925 l/ryznrox:

r. i v I I about and b Patented Sept. 13, 1927.

UNITED STATES 1,642,171 PATENT OFFICE.

wmm mo AVIS, LOS ANGELES, CALIFORNIA.

noon 8mm Application and Septemlier 19,1925. Serial manna My invention relates to a means for trim ming signatures and it has especlal reference to a device for removing surplus material from the edges of signatures whether in loose form or bound together and the main object of the invention is toprovlde a device of this character by which a removal of material from signatures may be accomf cles. of paper and dust incident on the removal are prevented from being scattered own into the room in which the ap aratus is operating.

ther objects will appear from the subjoined specification in connection with the accompanying drawing which illustrates a preferred form of embodiment of the mvention, and in which Fig. 1 is a front perspective view showmg my invention.

Fig. 2 is a, vertical section on line 22 Fig. 1 looking in the direction of the arrow.

Fig. 3 is a rear view, partly broken to show interior Construction.

Fig. 4 is an enlarged fragmentary sec-' tional view showing the work table and belt and Fi 5 is an elevation, partly in'sectionof the f st case.

85 My invention, "broadl, considered, comprises a signature abra mg means n con-- nection with a means for removin and collecting the abraded particles and incident dust. In particular, the invention is shown as comprising a hollow base 1, upon 'WhlCl) is secured in any desirable manner, as by bolts 2, a housing, which is shown as constituting substantially a chute 3, having free communication at the bottom thereof 4 with the base 1, which, as shown in Figs. 2

mounted for revolution upon an upper roller 6 and a lower roller 7, which are respectively journaled in roller bearings 6 and 7' of any approved type, the upper bearings 6' being adjustable to tauten the sand belt 55 -5. These bearings 6' and 7' are mounted in upright supports 8 and 8' within the housing 3, which is provided with a detachable side 3' for the convenient and quick removal of the belt 5 when necessary. At

'the bottom of the belt 5 and in close proximity thereto is preferably placed a deflectmg plate 9, extending horizontally of the housing 3 and at an angle to the verti cal. This deflector plate 9 is provided to divert the travel of the dust particles and paper fragments and to prevent them from being drawn upwardly by the belt and suction incident upon its revolutionary speed. These particles of whatever nature and form they may be, are readil deflected by the plate 9 and caused thereby. to depos1t upon the inclined floor 4 from which their removal continuously is effected by a current of air drawn into the apparatus by the means. presently described. I provide a number of holes 1' in theside 1 of the hollow base 1 for the (purpose of causing air to be drawn into an through the base 1 at that point where the deposit of the particles occurs. In this wise, the floor 4 is constantlfy; kept clean of dust and aper or thread agments. The bottom 0? the chute or housing 3 is provided with a lateral opening 3", by which communication is established between said housing 3anda case 10. For this purpose the case 10 is referably formed with a hollow flange extension 11 providing a passageway from the housing 3 into the case 10. By means of bolts 11', this flanged extension is connected with. the housing 3 at the point where the lateral opening 3" is provided. Slidable in the case .10 is a drawer, 10' into which the dust and other accumulations are gathered for subsequent disposition; top of the case 10 is formed with an opening 11", defined and bordered by an annular upstanding flange 12 over which is arranged to befitted and secured a bag 13 of any suitable textile material. When this bag 13 is inflated by the air drawn throu h the same the particles removed by t e sander, are collected in this bag which sifts them from the air. Upon deflation the ba 13 collapses, automatically emptying itsel of its contents which are collected in the drawer 10'. The bag is prevented from falling intothe drawer 10' by cross members 14, which span the o ening 11 in said case 10. Surmounting t e case 10 is a chamber 24 which is bolted or otherwise socured to the top of said case, and which is The p 1 of an area suificient to niment.

nected with one end of the shaft 1 of a motor 18, and the lower roller 7 over which table 19 disposed in proximity to thesand belt 5. For the purpose of affording co n= venient access to the sand belt 5, the 1101151,

the sand belt is extended is directly connected with the other end of the motor shaft 17, whereby the exhaustion of air through the apparatus is always synchronous with the operation of the sanding belt.

vided, and this sup ort may comprise a work ing 3 is provided withan opening 3', which exposes only so much of the belt as is needed for operation upon the-signatures, and for the purpose of enabling the operator to hold the signatures and guide same in relation to the sand belt, the table 19 is provided withv an opening 20, Fi 4, for accommodation of the operators gers or other members while grasping the work and guidin '-it against the sand belt. The upper en the front wall 33 of the housing 3 is formed preferably with a throat 21 with which the opening 20 in said table 19 is in direct communication, and which throat 21', leads directly into the chute 3. Through this opening 20 in saidtable 19, such quantity of dust and paper particles which are loosed by the sandbelt and fail to be carried into the chute 3 through the space between the work table 19 and the belt 5, are drawn through the throat 21 into the chute 3 and no dust or particles arescattered about outside the channels through which the air must pass. A screen or other perforate means 23 is preferablyprovided across the throat 21, for the accommodation of the o erators fingers when gripping a book, wit out impairing the free ingress of air. a a

In practice, the operator, taking hold of the ends of signatures, places the same over the opening 20 in the work table 19, while his fingers are conveniently accommodated in the opening 20. By movmg the signature said 'housing and incline .tively prevented from being disseminated by the suction maintained by the air exhaust.

What I claim, is: 1.- A device for removing surplus material from the edges of book signatures, comprising a'housing, a signature support thereon having an opening therein communicating with said housing and arranged to accommodate the operators fingers, holding a signature, an end ess abrading belt operable v within said housing, said housing having A support for the signatures may be proan opening near the top thereof exposing a portion of the belt at the signature support and provided near the bottom thereof witha plate inclined to the horizontal, a deflecting plate extendin horizontally of vto the vertical toi'prevent abraded particles from being drawn upwardly by said belt, a dust chamber, a connection between said housing and dust chamber, a normally oolla sed, selfemptying screen bag within sai chamber, means for supporting said bag when colla sed, and means for creating a suction about said belt and through said screen to inflate said screen bag and collect dust phrticles therein while said screen bag is inflated.-

2. A device for removing surplus material from the edges of book signatures comprising a housing, a signature support thereon having an opening therein and arranged to accommodate the operators fingers holding a signature, an endless abrading belt operable withiusaid housing, said housing having an opening in line with said signature support for exposing a portion .of the v W. ELMO REAVIS; 

